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GovSpeak: A Guide to U.S. Government Acronyms & Abbreviations: C

The most current, extensive and fully-linked listing of U.S. government agency, office, program and publication acronyms.

C

CAROL Case Analysis and Reporting Online
CARS Car Allowance Rebate System (defunct) | Central Accounting Reporting System (older link archive)
CART Community Assessment Reporting Tool
CARVE Carbon in Arctic Reservoirs Vulnerability Experiment
CAS Corporate Applications Search
CAS Board Cost Accounting Standards Board
CASAC Clean Air Scientific Advisory Committee (older link archive)
CASC Center for Applied Scientific Computing (older link archive) | Central American Service Corps | Climate Adaptation Science Center (older link archive; archive2; archive3; archive4; archive5)
CASL Consortium for Advanced Simulation of Light Water Reactors
CASMIRC Child Abduction and Serial Murder Investigative Resources Center (unable to verify 6/18)
CASOM Comprehensive Approaches to Sex Offender Management Program (unable to verify 6/20; older link archive)
CASPIR CDC and ATSDR Specimen Packaging, Inventory and Repository (unable to verify 8/14)
CASS Coastal Aquaculture Siting and Sustainability
CASTNET Clean Air Status and Trends Network
CASU Cooperative Administrative Support Units (defunct)
CAT Chemical Catalysis
CATC Clean Air Technology Center | College Affordability and Transparency Center
CATEF College Affordability and Transparency Explanation Form
CATI California Clean Air Technology Initiative
CATR Office of Conventional Arms Threat Reduction (older link archive; archive2)
CatReg Categorical Regression Analysis (older link archive)
CATS Center for the Advancement of Topological Semimetals | Central Application Tracking System | Cloud-Aerosol Transport System | Consolidated Asset Tracking System
CAVC United States Court of Appeals for Veterans Claims
CAW Center for Animal Welfare
CAWSC California Water Science Center (older link archive; archive2)
CD Climatological Data | Compliance Division, OGE (older link archive) | Counterintelligence Division
CDAC Commerce Data Advisory Council (unable to verify 11/18)
CDAP Center for Disability and Aging Policy (changed to CIP)
CDART Comprehensive Disaster Assessment and Readiness Toolkit
CDAT Climate Data Analysis Tools (merged into UV-CDAT)
CDB Climate Diagnostics Bulletin
CDBB Child Development and Behavior Branch
CDBG Community Development Block Grants
CDBPR Center for Developmental Biology & Perinatal Research (absorbed into DER)
CDBS Consolidated Database System
CDC Centers for Disease Control and Prevention
CDC/ATSDR SVI CDC/ATSDR Social Vulnerability Index
CDCO Corporate Data Center Operations (changed to EO)
CDCS Country Development Cooperation Strategy
CDCW CDC Washington Office
CDC WONDER CDC Wide-ranging Online Data for Epidemiologic Research
CDD Conserved Domains Database
CDDB Contraceptive Discovery and Development Branch (changed to CRB)
CDDIS Crustal Dynamics Data Information System
CDE Campaign for Disability Employment | Crime Data Explorer
CDER Center for Drug Evaluation and Research (older link archive; archive2; archive3; archive4)
CDFI Community Development Financial Institutions
CDHC Coral Disease & Health Consortium
CDIAC Carbon Dioxide Information Analysis Center (migrated into ESS-DIVE; older link archive)
CDIP Crash Data Improvement Program (unable to verify 3/20; older link archive)
CDL Census Depository Library | Commercial Driver's License Program | Cropland Data Layer
CDM Continuous Diagnostics and Mitigation (older link archive; archive2)
CDNS Climatological Data National Summary
CDO Climate Data Online
CDOM Center for Delivery, Organization, and Markets (unable to verify 10/19)
CDP Bureau of Cyberspace and Digital Policy | Center for Domestic Preparedness | Commercial Data Program
CDR Chemical Data Reporting | Climate Data Record Program (changed to CDRs)
CDRH Center for Devices and Radiological Health (older link archive; archive2; archive3)
cdRNS Common Data Repository for Nursing Science
CDRs Climate Data Records
CDS Capability Development Support | Cataloging Distribution Service | Clinical Decision Support
CDSi Clinical Decision Support for Immunization
CDSI Conservation Delivery Streamlining Initiative (unable to verify)
CDUP Commerce Data Usability Project (unable to verify 11/18)
CDX EPA Central Data Exchange
CE Consumer Expenditure Survey
CEA Council of Economic Advisers (older link archive)
CEAC Consular Electronic Application Center
CEAH Center for Epidemiology & Animal Health
CEAM Center for Exposure Assessment Modeling (older link archive)
CEAP Conservation Effects Assessment Project
CEB Pacific Coastal Ecology Branch
CEBAF Continuous Electron Beam Accelerator Facility (older link archive; archive2; archive3)
CEBB Customs Electronic Bulletin Board (migrated to CBP)
CEBR DNA Capacity Enhancement for Backlog Reduction Program
CEBS Chemical Effects in Biological Systems database
CEC Commission for Environmental Cooperation
CECA Center of Excellence on Children in Adversity (unable to verify 11/21)
CECC Congressional-Executive Commission on China
CED Center for Enterprise Dissemination | Community Economic Development Program
CEDC Communications Equity and Diversity Council
CEDCaP Census Enterprise Data Collection and Processing Systems
CEDI Cumulative Estimated Daily Intakes (older link archive) | Cybersecurity Education Diversity Initiative (unable to verify 10/21)
CEDR Comprehensive Epidemiologic Data Resource (older link archive)
CEDS Common Education Data Standards | Comprehensive Economic Development Strategy
CEE Consumer Education and Engagement Division (changed to CEEA; older link archive) | Communication, Education, and Engagement Division (older link archive)
CEEA Consumer Education and External Affairs Division
CEED Center for Efficient Exascale Discretizations | Climate Entrepreneurship for Economic Development (changed to CCE)
CEGIS Center of Excellence for Geospatial Information Science (older link archive)
CEHTP California Environmental Health Tracking Program (changed to Tracking California)
CEHTTFs Child Exploitation and Human Trafficking Task Forces
CEI Climate Extremes Index (older link archive)
CEIC Clean Energy Investment Center (changed to EIC)
CEII Critical Electric Infrastructure Information
CEJST Climate and Economic Justice Screening Tool
CELCP Coastal and Estuarine Land Conservation Program
CELS Computing, Environment, and Life Sciences
CEMM Center for Environmental Measurement and Modeling
CEMP Community Environmental Monitoring Program
CEN Bureau of the Census
CENC Commission on Enhancing National Cybersecurity
CENDI Federal STI Managers Group (formerly Commerce, Energy, NASA, Defense Information Managers Group)
CENRS NSTC Committee on Environment, Natural Resources, and Sustainability (defunct or inactive 1/17, WH transition)
CEO Chief Evaluation Office (older link archive) | Collect Earth Online
CEOS Child Exploitation and Obscenity Section
CEP Community Eligibility Provision (older link archive) | Completed Exposure Pathway | Currency Education Program
CEPD Caribbean Environmental Protection Division
CEPI Center for Evidence and Practice Improvement
CEPPO Chemical Emergency Preparedness and Prevention Office (unable to verify 12/15)
CEPS Center for Earth and Planetary Studies
CEQ Council on Environmental Quality (older link archive)
CER Comparative Effectiveness Research (retired 9/21; older link archive; archive2)
CERC Columbia Environmental Research Center (older link archive; archive2) | Crisis & Emergency Risk Communication
CERCLIS Comprehensive Environmental Response, Compensation, & Liability Information System (defunct; replaced by SEMS)
CERP Comprehensive Everglades Restoration Plan
CERSC Central Energy Resources Science Center
CERT Community Emergency Response Teams (older link archive; archive2) | Comprehensive Error Rate Testing (older link archive)
CERTS Coronavirus Economic Relief for Transportation Services
CES Center for Economic Studies (older link archive) | Current Employment Statistics
CESCF Cooperative Endangered Species Conservation Fund
CESD Climate and Environmental Sciences Division (older link archive; archive2)
CESER Center for Environmental Solutions and Emergency Response | Office of Cybersecurity, Energy Security, and Emergency Response
CETC Current and Emerging Threats Center
CfA Center for Analytics
CFA Center for Forecasting and Outbreak Analytics | Commission of Fine Arts
CFACT Center for Financing, Access, and Cost Trends
CFAP Coronavirus Food Assistance Program (page archived 10/21; older link archive)
CFAR Centers for AIDS Research
CFATS Chemical Facility Anti-Terrorism Standards (older link archive; archive2)
CFBCI Center for Faith-Based and Community Initiatives (changed to CFBNP)
CFBNP Center for Faith-Based and Neighborhood Partnerships (changed to CFOI)
CFC Combined Federal Campaign
CFDA Catalog of Federal Domestic Assistance (replaced by Assistance Listings)
CFE-DM Center for Excellence in Disaster Management and Humanitarian Assistance
C-FERST Community-Focused Exposure and Risk Screening Tool (no longer updating as of 8/19; older link archive; archive2)
CFFR Consolidated Federal Funds Report (older link archive)
CFIUS Committee on Foreign Investments in the United States (older link archive)
CFL Computers for Learning
CFLHD Central Federal Lands Highway Division (older link archive)
CFLR Collaborative Forest Landscape Restoration (also, CFLRP)
CFLRP Collaborative Forest Landscape Restoration Program (also, CFLR)
CFM Census Flows Mapper | Division of Contracting & Facilities Management, FWS (changed to CGS)
CFN Center for Functional Nanomaterials
CFO Chief Financial Officers Council
CFOC Chief Financial Officers Council
CFOI Census of Fatal Occupational Injuries | Centers for Faith and Opportunity Initiatives (unable to verify 2/21; older link archive)
CFP Climate Friendly Parks Program | Child and Family Program (changed from Office of Child and Family Programs)
CFPB Consumer Financial Protection Bureau
CFPCGP Community Food Projects Competitive Grant Program (older link archive)
CFR Center for Financial Research | Code of Federal Regulations (older link archive)
CFRP Community Facilities Relending Program (older link archive) | Cuban Family Reunification Parole Program (older link archive)
CFS Commodity Flow Survey (older link archive; archive2; archive3)
CFSAC Chronic Fatigue Syndrome Advisory Committee (defunct 9/18)
CFSAN National Center for Food Safety and Applied Nutrition (older link archive; archive2)
CFSRs Child and Family Services Reviews (older link archive)
CFSRU Counterterrorism and Forensic Science Research Unit (changed to RSU)
CFSv2 Climate Forecast System Version 2
CFTC Commodity Futures Trading Commission
CFTF Carbon Fiber Technology Facility
CFWSC Caribbean-Florida Water Science Center
CG Comptroller General of the United States (older link archive)
CGAHR Center for Grain and Animal Health Research
CGB Cancer Genetics Branch (changed to CGCGB) | Clinical Genetics Branch (older link archive) | Consumer & Governmental Affairs Bureau (older link archive)
CGC Crop Germplasm Committees
CGCGB Cancer Genetics and Comparative Genomics Branch (older link archive)
CGCI Cancer Genome Characterization Initiative
CGCS Cotton Ginning Cost Share Program (unable to verify 2/22)
CGFS Bureau of the Comptroller and Global Financial Services (older link archive)
CGH Center for Global Health, CDC | Center for Global Health, NCI
CGMHR Center for Global Mental Health Research (older link archive)
CGO Community Guide Office
CGP Catalog of U.S. Government Publications
CGS Center for Global Security (unable to verify 8/19) | Division of Contracting and General Services (unable to verify 3/22)
CGSR Center for Global Security Research
CI Computation Institute (defunct 2018; older link archive) | Cooperative Institutes, NOAA | Criminal Investigation (older link archive)
CI2 Council for Inclusive Innovation
CIA Central Intelligence Agency
CIADM Centers for Innovation in Advanced Development and Manufacturing
CIAO Critical Infrastructure Assurance Office (see NIAC)
CIAP Coastal Impact Assistance Program (unable to verify 3/22; older link archive)
CIAQ Federal Interagency Committee on Indoor Air Quality
CIB Clinical Investigations Branch
CIC Census Information Centers | Consumer Information Center (discontinued; replaced by Pueblo.GPO.gov)
CIC/AG Counterintelligence Center Analysis Group (unable to verify 2/17)
CICA U.S.-Mexico Border Information Center on Air Pollution (older link archive)
CICP Countermeasures Injury Compensation Program
CIDA Center for Integrated Data Analytics (changed to OWI)
CIDI Center for International Disaster Information
CID-TV Comprehensive Incident Database on Targeted Violence
C-IEDS Counter-IED Section
CI-FLOW Coastal and Inland Flooding Observation and Warning Project (older link archive)
CIFS Center for Innovative Finance Support
CIG Conservation Innovation Grants
CIGIE Council of the Inspectors General on Integrity and Efficiency
CIGP Citizenship and Integration Grant Program (changed to Citizenship and Assimilation Grant Program, then reverted back 2/21)
CIH Crop Insurance Handbook
CIHS Center for Integrated Health Solutions (changed to Center of Excellence for Integrated Health Solutions; older link archive)
CIMC Cleanups in My Community | Counterintelligence Mission Center
CIMS CDFI Information Mapping System
CINCH Components of Inventory Change
CINDRR Center of Innovation on Disability and Rehabilitation Research
CINMS Channel Islands National Marine Sancturary
CINT Center for Integrated Nanotechnologies
CIO Council Chief Information Officers Council
CIOC Chief Information Officers Council
CIP Cancer Imaging Program | Cataloging in Publication (older link archive) | Center for Integrated Programs (older link archive) | Division for International Communications and Information Policy (replaced by CDP) | Office of Case Intake and Publication
CIPAC Critical Infrastructure Partnership Advisory Council
CIP/BA Office of Bilateral and Regional Affairs (discontinued with establishment of CDP)
CIP/MA Office of Multilateral Affairs (discontinued with establishment of CDP)
CIPRIS Coordinated Interagency Partnership Regulating International Students (see SEVIS)
CIP/TS Office of Technology and Security Policy (discontinued with establishment of CDP)
CIR Collections Information Repository | Current Industrial Reports (older link archive)
CIRA Climate Change Impacts and Risks Analysis
CIREN Crash Injury Research Engineering Network
CIRG Critical Incident Response Group
CIRR Office of Cyber, Infrastructure, Risk and Resilience Policy
CIS Cancer Information Service (older link archive)
CISA Clinical Immunization Safety Assessment | Cybersecurity and Infrastructure Security Agency (older link archive)
CISE Directorate for Computer & Information Science & Engineering
CISVC Clinical Indicators of Sexual Violence in Custody
CIT Center for Information Technology | United States Court of International Trade (older link archive)
CITA Committee for the Implementation of Textile Agreements (older link archive)
CITES Convention on International Trade in Endangered Species of Wild Fauna and Flora (older link archive)
Cities-LEAP Cities Leading through Energy Analysis and Planning (older link archive; archive2; archive3)
CIV Civil Division
CJI Census of Jail Inmates
CJIS Criminal Justice Information Services
CJRP Census of Juveniles in Residential Placement
CJSSC Civil Justice Survey of State Courts
CN Choice Neighborhoods program (older link archive)
CNAFR Council for Native American Farming and Ranching (older link archive)
CNB Clinical Neuroscience Branch (defunct)
CNC Civil Nuclear Credit Program
CNCS Corporation for National and Community Service (changed to AmeriCorps 9/20)
CNCSOIG Corporation for National and Community Service Office of Inspector General (changed to AmeriCorps OIG)
CNE Office of Counternarcotics Enforcement (unable to verify 8/12; see 2010 OIG report)
CNEOS Center for Near Earth Object Studies
CNM Center for Nanoscale Materials
CNMS Center for Nanophase Materials Sciences
CNPP Center for Nutrition Policy and Promotion (older link archive; archive2)
CNS Corporation for National and Community Service (changed to CNCS) | Division of Computer and Network Systems
CNSD Computing and Network Services Division
CNSS Committee on National Security Systems
CNST Center for Nanoscale Science and Technology
COA Census of Agriculture | Clinical Outcome Assessments (changed to DCOA)
COAC Commercial Customs Operations Advisory Committee (previously, Advisory Committee on Commercial Operations of the Customs and Border Protection)
COALS Cable Operations and Licensing System
COAST Coastal Ocean Assessments, Status, and Trends (unable to verify 5/16)
COB Coordination of Benefits
COB&R Coordination of Benefits & Recovery
COBRA CO-Benefits Risk Assessment Health Impacts Screening and Mapping Tool | Consolidated Omnibus Budget Reconciliation Act
CoC Congressional Oversight Commission | Continuum of Care Program
COCA Clinician Outreach and Communication Activity | Coastal and Ocean Climate Applications (older link archive; archive2; archive3)
CoCASA Comprehensive Clinic Assessment Software Application
CoCHP Coordinating Center for Health Promotion (defunct)
COD Common Origination and Disbursement
CODIS Combined DNA Index System
COE Center for Outcomes and Evidence (merged into CEPI) | Condition of Education | Grants Center of Excellence
COFO Coalition of Federal Ombudsman
COGH Coordinating Office for Global Health (changed to CGH)
COJ Census of Jails (older link archive)
COL Cooperative Oxford Laboratory (older link archive)
COLC Copyright Office, Library of Congress
College AIM College Alcohol Intervention Matrix
COM Climate Observations and Monitoring
COMBAT Commercial Building Analysis Tool for Energy-Efficient Retrofits (unable to verify 6/19)
COMET City-based Optimization Model for Energy Technologies
COMT Coastal and Ocean Modeling Testbed
CONCEPTS CONservational Channel Evolution and Pollutant Transport System
CONPLAN U.S. Government Interagency Domestic Terrorism Concept of Operations Plan (.pdf)
CONSER Cooperative Online Serials
COOL Country of Origin Labeling
COOP Continuity of Operations, GSA (older link archive; archive2) | Continuity of Operations Program, HHS | Cooperative Observer Network (older link archive)
CO-OP Consumer Operated and Oriented Plan (older link archive)
CO-OPS Center for Operational Oceanographic Products and Services
CoP Conference of the Parties (older link archive)
COPAG Cosmic Origins Program Analysis Group
COPR Council of Public Representatives (unable to verify 11/14)
COPS Office of Community Oriented Policing Services
COPs/ROPs Country Operational Plans (older link archive)
COR Conservation and Outdoor Recreation Division | Cosmic Origins Program
CORAL COral Reef Airborne Laboratory
CORD CDC Online Resource Directory (unable to verify 12/18) | Childhood Obesity Research Demonstration
CORE Network Coordinated Outbreak Response and Evaluation Network (older link archive)
Core SVIPP Core State Violence and Injury Prevention Program
Core VIPP Core Violence and Injury Prevention Program (changed to Core SVIPP)
CORES COmmission REgistration System
CoRIS Coral Reef Information System
CORP Corporation for National and Community Service (changed to CNCS)
CORR Center for Occupational Robotics Research
CORS Continuously Operating Reference Stations
CoRTAD Coral Reef Temperature Anomaly Database
CoS NSTC Committee on Science (defunct or inactive 1/17, WH transition)
COS CareerOneStop | Report of Organization
COSIM Climate, Ocean and Sea Ice Modeling (unable to verify 12/16)
COSSAP Comprehensive Opioid, Stimulant, and Substance Abuse Program
CoSTEM NSTC Committee on Science, Technology, Engineering, and Math Education (defunct or inactive 1/17, WH transition)
CoT NSTC Committee on Technology (defunct or inactive 1/17, WH transition)
COTPER Coordinating Office for Terrorism Preparedness & Emergency Response (defunct)
COTS Cotton, Oilseeds, Tobacco and Seeds Division (unable to verify 12/13)
CovEx COVID Experiences Surveys
COVID AQS COVID Air Quality Study
CP Chemistry and Pharmacology Branch (older link archive; archive2)
CP3 Center for Prevention Programs and Partnerships | Center for Primary Care, Prevention, and Clinical Partnerships (merged into CEPI)
CPA Cuba Prohibited Accommodations
CPAD Chemical and Pollutant Assessment Division
CPARD Certification Plan and Reporting Database (older link archive; archive2)
CPARS Contractor Performance Assessment Reporting System
CPB Chemistry and Pharmaceutics Branch (older link archive; archive2) | Consultation Package Builder | Corporation for Public Broadcasting
CPC Casual Payment Center | Climate Prediction Center | Cooperative Patent Classification (older link archive)
CPCat Chemical and Product Categories (unable to verify 12/21)
CPCRC Columbia Plateau Conservation Research Center
CPD Center for Protected Disclosures | Continuity Planning Division | Correctional Programs Division | Office of Community Planning and Development (older link archive)
CPDB Carcinogenic Potency Database (retired 12/19)
CPDO Census of Public Defender Offices
CPEX Census Program for Evaluations and Experiments (older link archive; archive2)
CPF Capital Projects Fund
CPFFCL Census of Publicly Funded Forensic Crime Laboratories
CPGL Conservation of Private Grazing Land (older link archive)
CPGM Compliance Program Guidance Manual (changed to Compliance Program Manual; older link archive)
CPH Census of Population and Housing (older link archive)
CPHC Central Pacific Hurricane Center (older link archive)
CPHEA Center for Public Health and Environmental Assessment
CPHR Center for Precision Health Research
CPHST Center for Plant Health Science and Technology
CPI Center for Program Integrity (older link archive; archive2) | Consumer Price Index | Counter-Proliferation Investigations (older link archive) | Office of Counter-Proliferation Initiatives (older link archive; archive2)
CPIC Capital Planning and Investment Control
CPID Chemical Processes & Instrument Development
CPM Clinical Performance Measures
CPNI Customer Proprietary Network Information (older link archive)
CPO Climate Program Office | Coral Protocols Online | Corrections Program Office (now part of BJA)
CPONDER CDC’s PRAMS Online Data for Epidemiologic Research (discontinued: replaced by PRAMStat)
CPOS Credentialing Post Office Sites
CPP Capital Purchase Program (older link archive) | Clean Power Plan (repealed 6/19; older link archive; archive2)
CPPBSD Committee for Purchase From People Who Are Blind or Severely Disabled (aka "U.S. AbilityOne Commission")
CPPD Climate Protection Partnerships Division (unable to verify 9/15)
CPPM Crop Protection and Pest Management Program (older link archive)
CPPW Communities Putting Prevention to Work Program
CPR Center for Population Research (absorbed into DER) | Center for Preparedness and Response
CPRC Conflict Prevention and Resolution Center
CPRS Construction Progress Reporting Survey | Copyright Public Records System
CPS Bureau for Conflict Prevention and Stabilization | Child Passenger Safety (replaced by Parents Central, then Parents and Caregivers) | Current Population Survey
CPSC Census of Problem-Solving Courts | Consumer Product Safety Commission
CPS-FSS Current Population Survey Food Security Supplement
CPSO Cataloging Policy and Support Office (changed to PSD)
CPSRB Chemistry and Physiological Systems Research Branch (changed to CP)
CPT Cannabis Policy Taxonomy
CPVA Child Pornography Victim Assistance (older link archive)
CPWR Center for Construction Research and Training
CQR Census Count Question Resolution
CQuIPS Center for Quality Improvement and Patient Safety
CRGR Committee to Review Generic Requirements
CRH Contraception & Reproductive Health Branch (changed to CDDB, then CRB)
CRHP Civil Rights History Project
CRIA Interagency Forum on Climate Risks, Impacts and Adaptation
CRIS Center for Risk & Integrated Sciences (unable to verify 12/13) | Current Research Information System | Customer Relationship Interface System
CRISP Computer Retrieval of Information on Scientific Projects (merged into RePORT)
CRM Coastal Relief Model | Criminal Division | Cultural Resources Management
CRMC Center for Research for Mothers & Children (absorbed into DER)
CRMS Coastwide Reference Monitoring System
CROIE Cultural Resources Office of Interpretation and Education
CROMERR Cross-Media Electronic Reporting Rule
Crop-CASMA Crop Condition and Soil Moisture Analytics
CROSS Customs Rulings Online Search System (older link archive)
CRP Community Resilience Panel for Buildings and Infrastructure Systems (terminated 12/17; older link archive; archive2; archive3) | Conservation Reserve Program
CRPDG Compensation Research and Program Development Group
CRRL Columbia River Research Laboratory
CRS Centralized Receivables Service | Community Relations Service | Congressional Research Service
CRSCI Climate-Ready States and Cities Initiative
CRSRA Commercial Remote Sensing Regulatory Affairs (older link archive; archive2)
CRSS Crash Report Sampling System
CRT Climate Resilience Toolkit
CRUPs Cultural Resource Use Permits
CRWS-BoK Cyber Resilient Weapon Systems Body of Knowledge
CRWU Creating Resilient Water Utilities
CSDL Coast Survey Development Laboratory (unable to verify 2/21)
CSE Office of Child Support Enforcement (changed to OCSE)
CSELS Center for Surveillance, Epidemiology and Laboratory Services (older link archive)
CSEM Case Studies in Environmental Medicine
CSEPP Chemical Stockpile Emergency Preparedness Program (older link archive)
CSESP Citizen Science for Earth Systems Program
CSF Cybersecurity Framework
CSFC Center for Sustainable Fuels and Chemicals
CSFP Commodity Supplemental Food Program (older link archive)
CSGB Chemical Sciences, Geosciences, and Biosciences Division | Computational and Statistical Genomics Branch (older link archive)
CSGCL Crop Systems and Global Change Lab (changed to ACSL)
CSI Center for the Study of Intelligence (unable to verify 2/21) | Climate and Societal Interactions Division (older link archive; archive2) | Computational Science Initiative | Conservation Study Institute (changed to Stewardship Institute) | Container Security Initiative
CSIA Cyber Security and Information Assurance (older link archive)
CSL Chemical Sciences Laboratory (older link archive) | Chemical Security Laboratory | Consolidated Screening List
CSLLEA Census of State and Local Law Enforcement Agencies
CSMAC Commerce Spectrum Management Advisory Committee
CSMB Center for Structural Molecular Biology
CSN Consumer Sentinel Network
CSO Bureau of Conflict and Stabilization Operations (older link archive) | Congressional Staff Organization (older link archive) | Office of the Federal Chief Sustainability Officer
CSOD FAI Cornerstone OnDemand
CSOS Controlled Substance Ordering System
CSOSA Court Services and Offender Supervision Agency for the District of Columbia